摘要
以硫酸氧钛为原料,尿素为沉淀剂,硫酸为水解控制剂,利用均匀沉淀法制备TiO2薄膜,并对其进行改性,制备Ag/TiO2。结果表明,经载银处理可明显提高催化活性,其使用寿命更长,且有一最佳载银量;在太阳光下Ag/TiO2的催化活性比在黑光灯下强。
TiO2 film is prepared by homogeneous precipitation method in which TiOSO4 and urea are used as raw material and H2SO4 is used to control hydrolysis of TiOSO4. The TiO2 film is modified to prepare Ag/TiO2. The results show that Ag/TiO2 has a higher catalytic activity and a longer life than TiO2 unmodified and Ag has a best content in the catalyst. Ag/TiO2 has a higher catalytic activity under sunlight than under black light.
